Means for slitting sheet material



ay 927 T. B. MUNROE MEANS FOR SLJT'IING SHEET MATERIAL 5 Sheets-Sheet; 1

Filed Sept. 4 1925 May 24, 1927.

T. B. MUNROE MEANS FOR SLITTING SHEET MATERIAL Filed Sept. 4. 1925 5Sheets-Sheet 2 \m a m 24 1 J May 9 T. B. MUNROE MEANS FOR SLITTING SHEETMATERIAL Filed Sept. 4. 1925 5 Sheets-Sheet 3 May 24, 1927. T. B. MUNROEMEANS FOR SLITTING SHEET'MATERIAL Filed Sept. 4. 1925 5 Sheets-Sheet 4'24 May 1927 "r. B. MUNROE MEANS FOR SLITTING SHEET MATERIAL Filed Sept.4 1925 5 Sheets-Sheet 5 Patented May 24,1921.- UNITED STATES PATENTOFFICE.

- rananwar B. Mormon, or CHICAGO, ILLINOIS, ASSIGNOR TO humane acomrmv,

nm, or cmcaeo, ILnmoIs, A comoaa'non or DELAWARE.

' mums ro e sLI'rTINe snnnr MATERIAL.

Application med September- 4, 1925. Serial No. 54,528.

, This invention relates to mechanisms for slitting and cross cutting acontinuously moving Web of material, and has for its object to improvethe procedures which have been heretofore proposed.

With this and other objects in view,.the invention consists in the noveldetails of construction and combinations ofparts more fully" hereinafterdisclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of thisspecification, in which like numerals designate like parts in i all theviewsparts;

Figure 1 is a diagrammatic plan view 'partially broken away of aslitting and cross cutting," apparatus, made in accordance with thisinvention;

Figure 2 is a plan View of a-traversing carriage and trackway adapted tobe used in connection with the apparatus shown in Fig 1; v g

igure 3 is a side elevational view of the parts shown inFig. 2;

Figure-4 is a detail top plan view of the traversing carriage and itsassociated parts;

Figure 5 1s a sectional view taken on the line 55 of Fig. 4 looking inthe direction of the arrows;

Figure 6 is an enlarged s de elevational View of the cutter disk and itsassociated Figure 7 is an end elevational view of the 3 parts shown inFig. '6;

Figure 8 is a detail view illustrating the connection between thetraversing carriage and the operating means therefor;

Figure 9 is a detail v1ew partly in section of the target controllingthe rotary electric motor for the traversing carriage; FigurelOis a sideelevatlonal view of the target mechanism shown in Fig. 9;

I Figure 11 is a sectional view taken on the better understood it issaid :-It is now well known thatthere is on the market sheets of fibrousmaterial known as Celotex which are used as a substitute for lumber, for

.wall boards, and for many other purposes,

and that these sheets are made out of bagasse, or the waste fibersderived from sugar These said bagasse fibers are cane stalks. floated inwater to and over a sheet formmg machine, whereupon' the sheets areformed in widths of some 8, 10 or 12 feet and continuously, so that asthe wet sheets are passed through a drier, they may be some 10 or 12feet wide and say from 600 to 1000 feet long before the are thoroughlydried. Owing to these a normally, large dimensions of the manufacturedCelotex sheets, it is necessary to cut them up into suitable lengths,and these len ths or dimensfons usually produce boar s of about say/1feet wide and from 6 to '8, 10 to 12 feet long, according to the uses towhich they are to be put. As the original finished Celotex she'ets\are,generally about inch 10 feet long.

Therefore, this invention when more continuously cutting the originalsheets while they are in motion and coming from the drier into suitabledimensions.

provided with a plurality of knife edged disks which slit the sheetlengthwise as it travels from the drier, all as will appear in thicknessthe cut boards are usually say A IIlCh 1n th1ckness, 4 feet wide, and 8or I Briefly stated, the invention consists In a machine, 1

specifically stated relates to a: machine for more fully below. Afterthe original sheet is thus slitinto say three strips each 4 feet wide,while it is still in motion, atraversing mechanism also provided with aknife edged cutting ,disk cuts the .slitted strips 'perpendiculartotheir line of motion into predetermined lengths, and thusforms the abovementioned boards of'say 4 feet wide and from 6 to 10 01' 12 feet long.

Referring to the accompanying drawings and more especially to Fig. 1,the traveling sheet as it comes from the drier is indicated at l, theslitting mechanisms are indicated at 2, the slits in the sheet areindicated at 3, the disk cutter and its associated arts which cuts theslitted sheets crosswise 0 their path of travel is indicated at 4, whilethe cutsmadeby saidcutter 4a is indicated at 5, and

the cut or formed boards of proper dimensions are indicated at 6. Afterthe boards 6 are thus cut into proper dimensions they are received uponthe rollers 7 which are turned by suitable power (not shown) and whichdeliver said boards 6 onto the sprocket chains or cross conveyorindicated at 8 which chains are provided with the dogs 9 adapted tocatch against the edges 10 of the boards 6 and to move the latter in adirection perpendicular to the original line of travel,

all as indicated by the arrow 11 in Fig. 1.

At 12 is indicated the traversing mechanism for carrying the cutter 4across the path of travel of said sheets 1, to sever the slitted boards6. Said traversing mechanism is pivoted at thepoint 13 for a purposewhich will be more particularly described below. Suiiice it, however, atthis point to state that beneath the slitt-ed sheet there is disposed apair of steel supporting plates 15'and 16 separated by a slot or space17, in which slot 17 operates the cutting mechanism4 as will bepresently described.

Referring now more particularly to Figs. 2 and 4, the track or frame 12of the traversing mechanism above mentioned and which is pivoted at thepoint 13, is supported on the concrete block 20 at said point 13 by thepivot pin 22 and by the block 21 and the circular or arcuate member 23with which the pillar 21 is provided. This said track or frame 12 isprovided with two supporting rails 24 and 25.. 0n the rail 24 rests thegrooved wheels 26 and 27 and on the rail rests the grooved wheels 28 and29, while the shaft 30 supports the wheels 26 and 28 and the shaft3lsupports the wheels 27- and 29.

0n the ends of-the shafts carrying the I wheels 26 and 27 are disposedthe bearing blocks 32 and 33, respectively, and these bearing blockssupport side frames 34. On

- the ends of the shafts carrying the wheels 28 and 29 are disposed thebearing blocks 35 and 36 and from these bearing blocks are supported theside frame 37. Tying the side frames 34 and 37 together and disposedparallel to the shaft 30 is the end frame member 39; while tying theother ends of the side frames 34 and 37 togetheris disposed the endframe member 40, as illustrated. At the corner between the members 37and 39 is disposed the bracing member 41, at the corner connecting theframe 34 and 39 is the bracing member 42, at the corner connecting theframe members 34 and 40 is the bracing member 43, and at the cornerconnecting the frame members 37 and 40 is the bracing member 44.Disposed underneath the members 34, 37 and 40V and rigidly securedthereto is a flat steel plate.

8 45, as will be clear from Figs. 2, 4 and 11.

To this plate 45, is ivoted as at the point 46, the supporting. p ate 48of the irregular shape shown in Fig.4. Thatis to say, this masses plate48 is provided with the straight sides 49, 51 and 52 and the curved backedge 53, as shown, and supports the cross cutting mechanism. This saidplate 48 lies in a horizontal plane as best seen in Figs. 2, 4 and 11,and mounted thereon is the electric motor 55 provided with the shaft 57on is another sprocket wheel 66 over which.

said sprocket chain 64 also passes. See Figs. 4 and 5. Mounted on theplate member 48 is ELAfOOt plate 67, see Figs. 4, 5 and 11, and rigidwith this foot plate 67 is the upstanding bracing member 68 to which issecured a casting 69, see Fig. 4, provided with the bearings 70 and 71for said shaft 65. Bolted to the member 68 as at 75 is the member 76rigidly secured to the shoe 77 provided with the steel anvil blocks 78,all aswill be clear from Figs. 4, 5, 12' and 13. Also mounted on theshaft 65 is the disk cutter 79, one edge of which extends up throughtheslot between the anvil blocks 78 as clearlyshown in Figs. 5 and 12. pThe member 81, Fig. 4, connects the shafts 62 and 65 so as to insurethat the sprocket chain 64 and its associated parts will run smoothly.

From what has now been disclosed and referring more particularly toFigs. 5, 12 and 13, it will be observed that the slitted sheet 1 iscross cut by the disk cutter 79-, see Fig. 12, as said sheet passesunderthe anvil blocks 7.8 and over the supporting member 83. Referringmore particularly now to Fig. 6 it will be observed that the cutter 79after severing the slitted sheet 1 divides it into two parts 84 and 85,which are separated from each other in different horizontal planes. Thatis to say, the upper part or edge 84 passes up over the mem er 86 andthe other part 85 passes down over the projecting member 83, see Figs.5. 6, 12 and 13. It will be observed fromFigs. 5, 6, and 13 that thebolts 75 secure to the member 68 the member 76, which is provided withthe curved supporting member 86 above mentioned, over which the upperportion'84 of the sheet 1 passes. In other words, said member 76 isprovided on one side with a curved member 86 to guide upwardly theportion 84 of the sheet and it is provided on its other side with themember 87 to guide downwardly the-portion 85 of the slit-ted "govern themovement of the sheet 1 to the cross cutting disk 79, see Fig. 6.

Fromvwhat has now been disclosed and referring back to Fig. l it will beclear that if the traversing mechanism 12 is swung on, its pivot 13, byany suitable means such as the hand wheel and worm gear 90, the cuttingmechanism 4 including the disk cutter 79 which does not show in Fig. 1,may be kept always above the slot 17, as it is made to traverse the pathof travel of I the sheet 1 and thus may'the slitted on shaft 103,transmitting portion 6 of the sheets llbe properly cut off into boardsof the predetermined dimensions described above. That'is to say, thecutting mechanism 4 of Fig. 1 is automatically reciprocated across thepath of travel of the slitted sheets after the mechanism 90 has swungthe said traversing mechanism 12 on its pivot 13 to the'proper anglewhich will cause the cutting mechanism 4 including the disk 7 9 tofollow the path of the fixed slot 17. This angle to which the traversingmechanism must be set, depends upon the speed of the sheet, and a tableof angles for given speeds is empirically made out, whereupon for anygiven speed the corresponding angle becomes fixed. \Vhen th s is done,then the cutting mechanism 4 1s automatically r'eciprocated in thefixedslot 17 by the following means.

Referring more particularly to Figs. 2 and 3, 100 indicates a motorprovided with a inion, 101 meshing with gear 102 mounted ower to onemember of the magnetic clu ch 104, transmitting power to the shaft 105,on which is mounted the gear 106 meshing with the gear 107 rigid withthe shaft 108 carrying the gear pinion 109. On the other end of sa1dshaft 108 is also a companion gear pinion 110. The pinion 109 mesheswith a gear 111 beneath it, and carried by the short shaft 112, as bestshown in Figs. 3 and 14. In like manner, the pinion 110 meshes with thelarger gear 113 beneath it and which gear 113 is likewise carried by ashort shaft 114 similar to shaft 112 but not shown. except for its end,see Fig. 2. The shaft 112'carries a sprocket wheel 115 and the shaft 114carries a sprocket wheel 116. As best shown no Figs. 2, 3, 4, 5, and 11,at the opposlte end of the tracks 24 and 25 from the end supporting theshaft 108, there is provided two other short shafts 120 and 121. Mountedon the short shaft 120 is a sprocket gear 122 and mounted on the shortshaft 121 is the sprocket gear 123. A sprocket chain 12:") passes overthe sprocket gears 115 and 122 and a sprocket chain 126 passes over thesprocket gears 116 and 123. As w1ll be clear from Figs. 2, 3 and 8 themember 130 is attached to the axle 31-of the traversing mechanism and.is provided with a link 127,

chain 125 as at the point 128 Fig. 8. To

and this 'link is also attached to the sprocket the other end of theaxle 31 there is a similarl' mechanism in all respects aduplicate ofthat shown in Fig. 8, attached thereto and which 1s given the samereference characters.

It will now be clear that as the sprocket chains 125 and 126 move towardthe right, as seen in Figs.'2 and 8, the member 128 on each chain willcause the cutting mechanism to move from one end of the tracks 24 and 25to the other, or until said members 128' reach the sprocket wheels 115and 116, respectively. Vhen these members 128 reach said sprocket wheelsthey will revolve right around said sprocket wheels due to the factthatsaid sprocket wheels are on the short shafts 112 and 114 located underthe shaft 108, and to the fact that there is no continuous shaft in linewith the short shafts to obstruct the passage of said members 128.Further, said members .128 are disposed on the inner sides of theirrespective sprocket chains 125 and 126. It results. from this that theupper bight of the sprocket chains 125 and 126 will carry the crosscutting traversing carriage to the right, as just described, until thesaid sprocket wheels are reached, whereupon the members 128 will revolvearound said sprocket wheels and said carriage or cutting mechanism willbe then carried back toward the left as seen in Fig.

2. This movement toward the-left will continue until the members 128reach the sprocket wheels 122 and 123, which are likewise mounted onshort shafts 120 and-121 turning or moving toward the right as seen inFig. 2, in order that there should be a length of the slitted sheetdisposed beyond said cutter 79 and in order that when it begins its newcutting action the proper len th of the slitted sheet will be severed toform the desired boards 6. This is provided for by the following means:The gears are so proportioned that the movement of the cutting mechanism4, including cutter 7 9,

Fig. 1. will move many times faster than will the sheet. For example,suppose the original sheet 1s twelve feet across and in order to fix theidea suppose the boards'6 that are severed by cutter 79 from said sheet'are 8 feet long. the cutting mechanism 4 must move 12 feet across thesheet in one direction and 12 feet back, making in all 24 feet of travelwhile the sheet only moves a distance depending upon the angle of theslot 17 and in any case, less than 8 feet, thus making the ratio greaterthan 3 to 1 in the instance mentioned, Stated in other language, notonly must the speed of the cutter 4 shown in Fig. 1 be much greater thanthe speed of the sheet, but there must be a dwell after the cutter 4 hascrossed the sheet 1 in one direction and has returned'to its startingpoint, before a new cross cut is made. In order to get this dwell, thesevered boards 6 are made to contact against a target, or circuitbreaker 140 which has the effect of cutting OR the power from shaft 105as will be disclosed below. That is, the boards 6 already severed aredelivered to the above mentioned feedrollers7 which travel at a fasterrate than the sheet 1 and which therefore move the previously severedboards out of the way of the oncoming unsevered boards so that thelatter may strike the targetand make the circuit through the magneticclutch, in order to start the cross cut ting means 4 into action.

Stated in other words, the circuit through the clutch 104 is closed bothat the switch 140, and at the cut out switch 151. The circuit at thetarget or switch 140" is momentarily closed and immediately broken whenthe front edge of the oncoming sheet 1 strikes it, and the circuit atthe cut out switch 151 is closed immediately afterwards.

That is, the parts are so timed that the severing mechanism 4 completesits cross cutting action and returns to its initial position near thesaid cut out switch 151, see

Fig. 1, just before the severed board leaves the target 140, and thisreturn of said means 4 causes the bumper 150 to contact with the cut outswitch and to break one of the circuits through the clutch 104 over thewires 152 and 153 just before the severed board 6 finally leaves thetarget or switch 140. Said board 6 while in contact with the target 140holds the latter in a depressed condition against the tension of thespring 155, see Fig. 9, and therefore as said board leaves said targetsaid spring 155 returns the latter to its upright position. The circuitover the 'wires 141 and 142 through the clutch 104 being already broken,this condition leaves the cutting mechanism 4 including the cutter 79 atits initial position with no power at all on the shaft 105, because allcurrent to the clutch 104 is cut off. Therefore, the above mentioneddwell of the means 4 takes place, and the severing cross c'uttingmechanism remains stationary until the oncoming slitted sheet 1 reachessaid target 140, depresses the same and thus again makes the circuitover the wires 141 and 142 through the clutch 104 and starts the crosscutting mechanism 4 on its journey to sever a new set of boards 6. Thislast named circuit is made only momentarily, butlong enough for themeans 4 and bumper 150 to recede from the switch 151 and close thecircuitthrough the clutch 104 over the wires 152 and 153. This circuitover the wires 152 and 153 now remains closed until the mechanism 4 hascompletely traversed the sheet 1 and returned to its initial positionwhen the switch 151 is again opened and the cycle of operationsrepeated.

The motor 55 on the means 4, see Fig. 2, is fed by the flexible cable156.

It should be pointed out that as the cutter 79 begins its forward motionacross the sheet .1, the upwardly curved end 88 of the shoe member 77rides up over the said sheet and facilitates the cutting action byaiding in holding the sheet in place. On the other hand, when 'saidcutter 79 begins its return travel after completing its cross cuttingaction, the downwardly curved portion 87 -of said shoe member 77naturally points under said sheet 1 and therefore lifts the latterupwardly to a degree sufiicient to enable the whole mechanism to returnto its starting point underneath said sheet 1.

The operation of the foregoing mecha- 'nism will be clear from what hasbeen said but may be briefly summarized as follows The oncoming sheet 1is slitted in a plurality of places 3 by the slitting members 2 notclaimed herein and the traversing cutting mechanism indicated generallyby the numeral 4 and which is disclosed in detail in Figs. 4, 5, 6 and7, is started from a point near the cut-out switch- 151 which is at.this time open. --The starting of this said traversing mechanism 4 iseffectedby the forward edge of the sheet 1 striking the target orstarting switch 140 which momentarily closes the circuit over the wires141 and 142 through the magnetic clutch 104, and thus permits power fromthe motor 100 to turn the power shaft 105 which through the gearingdescribed turns the shaft 108 and the sprocket wheels and 116. Thesesaid wheels 115 and 116 turn the sprocket chains and 126 which pass overthe sprocket wheels. 122 and 123 and these chains are connected by themembers 127 and 128 to the traversing carriage carrying the mechanism 4and reciprocates said traversing car riage across the path of travel ofthe sheet 1 from its starting point back to its initial position due tothe fact that the sprocket wheels above mentioned are mounted on shortshafts 112 and 114, disposed underneath the shaft 108 as well as on theshort shafts 120 and 121. These short shafts permit the connections 127and 128 to pass entirely around the sprocket wheels with the sprocketchains, and thus to continuously reciprocate the traversing carriagewith the severing mechanism 4 and cutter 79 as long as power is appliedto the power shaft 105 through the clutch 104. On the other hand, saidclutch 104 is not only controlled by the targetor switch 140 throughcurrent passp -151, which latter is operated by the butter 150 carriedby said traversing means or carriage 4. It thus happens that after thecutter 79 on the severing mechanism 4 has returned to its initialposition, the buffer 150 opens the switch 151 and cuts off c'urrent fromthe clutch 104. The current through the target or switch 140 has beenpreviously cut ofi due to the fact that the switch 140 is or may be ofthe well known type which momentarily makes circuit and then immediatelyopens the same. That is to say, as soon as the traveling forward edge ofthe sheet 1 strikes said switch 140, circuit is momentarily made and themagnetic clutch 104 isenergized, whereupon the circuit is thenimmediately broken. The target 140 accompanying this switch is helddepressed by the sheet as long as it is passing thereover, but as soonassaid switch is released from said sheet 1, the spring 155 thereofrestores the target to its upright position and it is ready for anotherdepression or action. As this switch forms no part of this invention andas switches of this character are well known, it is not deemed necessaryto describe it further herein. Suffice it to say that when thetraversing carriage 4 has severed the plurality of boards 6 from thetraveling sheet and has returned to its initial position, it isnecessary that it dwell for a predetermined time near the switch 151before starting another cut, in

order that the relatively slow moving sheet 1 will have time to pass thesaid cutter 4 for a sutlicient distance to insure that the cutter 4 willsever the right lengths of material. In order to get this dwell, the

said severing mechanism 4 through its buffer 150', opens the circuit atthe switch 151 upon its return to its starting point, and the cir-' cuitthrough the switch 140 being already open, said severing means 4 ofnecessity dwells or ceases its motion until. a circuit,

is again made through said clutch .104. In other words, the dwell of thecutting mechanism 4, continues until the oncoming edge of the sheet 1again strikes the target 140 and momentarily closes the circuit throughthe clutch 104 and thus starts the said severing mechanism 4 again onits traversing cutting action. Although the circuit is made through theswitch 140,. and almost immediately broken, yet said circuitis closedfor a time sufiicient for the cutting means 4 to be startedon its motionacross the sheet and therefore the switch 15-1 is automatiof the line oftravel of sald sheet and at an .cally closed and remains closed untilthe angle thereto proportional to the relative and returned back to itsnormal position, whereupon the cycle of operations 1s reeated.

The breaking of the circuit through the center of the slot 17, and inorder to effect this there is provided the screw 165, Figs.

'2 and 4, pivotally mounted at one end on the bracket 166 rigid with theplate 48 and rotatably mounted at its other end in the boss 167 rigidwith the carriage member 42. A hand operated nut 168 serves to adjustthewhole plate 48 including the cutter 79 around the pivot point46 as acenter and to thus enable the operator to keep the line of travel ofsaid cutter in the center of the slot 17. In order to get the severedboard 6 o'ut of the way of the oncoming-boards to be severed the rollers7 as above stated are driven at a" faster speed by means not shown thanis thespeed of the sheet 1 and said severed boards are delivered to thesprocket chains 8 as illustrated in Fig. 1 which chains pull them awayfrom the path of travel of the oncoming boards. It is found in practicethat a cutting disk such as 79 provided with a knife edge andcontlnually sharpened by means not shown is pecul arly adapted forcutting bagasse sheets, and especially when it is revolved at arelatively low speed, but this invention is not limited to such cuttingmeans as other forms of cutters may be substituted therefor.

It is. obvious that those skilled in the artmay vary the arrangement ofparts as wellasthe material operated upon and also the individualelements of the mechanism, without departing from the spirit of themvent on and therefore it is not desired to be limited to the foregoingdisclosure except as may be required by the claims.

What is claimedv is: I

1. In an apparatus for cutting a traveling sheet of material thecombination of means for propelling'a cutter transversely of the l1ne oftravel of said sheet and at an angle thereto proportional to therelative speeds of said cutter and sheet; automatic means to speeds ofsaid cutter and sheet; means for out.

at said starting point for a changing said angle when said speedschange; automatic means to cause said cutter to return to its startingpoint after its severing operatlon is completed; and automatic means tocause said cutter after returning to dwell at said starting point for apredetermined time before starting a new 3. In an apparatus for cuttinga traveling sheet of material the combination of means for propelling acutter transversely of the line of travel of said sheet and at an anglethereto proportional to the relative speeds of said cutter and sheet;pivoted means for changing said angle when said speeds change; automaticmeans to cause said cutter to return to its starting point after itssevering operation is completed; and automatic means comprising a cutout switch to cause said cutter after returning to dwell predeterminedtime before starting a new cut.

4. In an apparatus for cutting a slitted traveling sheet of materialinto predetermined lengths the combination of a cutting means; a motorand'connections for moving said cutting means across the path of travelofasaid'sheet and back to its starting point; means provided with a slotin which a portion of said cuttin means travels; and a circuit makingand breaking switch adapted to be operated by said traveling sheetadapted to control the movements of said cutting means.

5. In an apparatus for cutting a slitted traveling sheet of materialinto predetermined lengths the combination of a cutting means; a motorand connections for moving said cutting means across the path of travelof said sheet and back to its start-" ing point; means provided with aslot in which a portion of said cutting) means travels; a circuit makingand reaking switch adapted to be operated by said travel- 'ing sheetadapted to control the movements of said cutting means; and a cutoutswitch adapted to be operated by said cutting means for also controllingthe movements of said cutting means.

6.,In an apparatus for cutting a slitted traveling sheet of materialinto predetermined lengths, the combination of a cutting means; anelectric motor and connections for reciprocating said cutting meansacross the path of travel of said sheet; means provided with a slot inwhich a portion of said cutting means travels; means for adjusting saidslot at an angle to the 'line of travel of said sheet proportional tothe relative speeds of said sheet and cutting means; and circuit makingand circuit breaking switches controlling said motor adapted to cause adwell of said cutting means for a predetermined interval after eachcomplete reciprocation th reof.

7. In an apparatus for cutting a slitted traveling sheet of materialinto predetermined lengths, the combination ofa rotatin cutting means; acarriage on which sai cutting means is carried; a track over which saidcarriage moves; an electric motor and connections for reciprocating saidcutting means and carriage over said track and across the path of travelof said sheet; means provided with a slot in which a portion of saidcutting means travels; means for adjusting said slot at an angle to theline of travel of said sheet proportional to the relative speeds of saidsheet and cutting means; and circuit making and circuit breakingswitches controlling said motor adapted to cause a dwell of said cuttingmeans for a predetermined interval after each complete reciprocationthereof.

'8. In an apparatus for cutting a slitted traveling sheet of materialinto predetermined lengths, the combination of a cutting means; anelectric motor and connections comprising a magnetic clutch for reciproeating said cutting means across the path of travel of said sheet;adjustable pivoted meansrovided with a slot in which a portion 0 saidcutting means travels; means for adjusting said slot at an angle to the,line of travel of said sheet proportional to the relative speeds ofsaid sheet and cutting means; an electric motor for rotating saidcutting means and circuit making and circuit breaking switchescontrolling both said motors and adapted to cause a dwell of saidcutting means for a predetermined interval after each vcompletereciprocation thereof.

9. In an apparatus for cutting a traveling sheet of material into apredetermined length the combination of a traversing means provided witha shoe curved upwardly at one end and curved downwardly at its otherend; a cutter carried by said traversing means: an electric motor andconnections comprising an electrically controlled clutch for moving saidtraversing means and cutter across the path of travel of said sheet andback to its starting point; a pivoted adjustable means provided with aslot in which a portion of said cutter travels; and circuit making andbreaking switches adapted to be controlled respectively by saidtraveling sheet and by said traversing means to effect the starting andstopping of said last named means and said cutter and to cause saidtraversing means to dwell for a predetermined interval of time beforeeach cutting action.

10. In an apparatus for cutting a traveling sheet of material into apredetermined length the combination of a traversing means provided witha shoe curved upwardly at one end and curved downwardly at its otherend; a cutter carried by said traversing means; an electric motor andconnections comprising an electrically controlled clutch ,for movingsaid traversing means and cutter acrossthe path of travel of said sheetand back toiits starting point; an electric motor for operating saidcutting means; a pivoted adjustable means provided with a slot in whicha portion of said cutter travels; and circuit making and breakingswitches adapted to be controlled respectively by said traveling sheetand 'by said traversing'means toei'tect the starting-and stopping ofsaid last named means and said cutter and to cause saidtraversing meansto dwell for a predetermined interval of time before each cuttingaction.

11. In an apparatus forcutting a traveling sheet of material into apredetermined.

length the combination of a; traversing means provided with a shoecurved upwardly atone end and curveddownwardly at its other end; acutter carried by said traversing means; a track'on which saidtraversing means travels; an electric motor /and connections comprisingan electrically controlled clutch for moving said traversing means onsaid track and cutter across the path oftravelof said sheet and back toits starting point; apivoted adjustable'means provided with a slotinwhich a portion of said cutter travels; means for. adjusting said slotto an angle to the'pathpf travel of said sheet proportional to therelative speeds of said sheet andjtraversing means; means to soadjustsaid, cutterj-asto cause the latter to move in a path approximating thecenter of said slot; and'circnitfmaking and breaking switches adapted tdbe controlled respectively wears-trawling sheet and by said traversing;nieansctoefi'ect the starting and stopping' ofgsaid last named means andsaid cutteran'd to jc'ausesaid traversing means to dwell for a;predeterminedinterval of time beforeieach cutting action.

12. In an apparatus for'cutting a traveling sheet into predeterminedlengths the combination out a cutting means comprising 7 a carriagecarryinga cutter; a pivoted mem-' her on which said cutter is supported;means comprising a motor ,"forfreciprocating sa d carriage and cutteracross the path of travel of said sheet and back to its starting point;

a pivoted means provided with a slotin which a portion of said cuttertravels'an'd adapted to be placed an an angle. tothe path of travel ofsaid sheet proportional to I the relative speeds of said carriage andsheet; a second electric. motor for rotatingsaid cutter; an electric:switeh' atlapted to' start the movement of saidfcarrjiage -con-; trolledby said travelingsheet; and an auto matic cut-out switch adapted to beoperated by said carriage to stop ;thfe moftion offthe latter and saidcutter.

7 .13. In an apparatus for cutting a travel ing sheet into predeterminedlengths the combination of a cutting means comprislng a carriagecarrying a cutter; a pivoted memher on which said cutter is supported;means comprising a motor and a magnetic clutch for reciprocating saidcarriage and cutter across the path of travel of said sheet and backtoits starting point; a pivoted means provided with a slotin-which aportion of said cutter travels and adapted to be placed at an angle tothe path of travel'of said sheet proportional to the relative speeds ofvsaid carriage. and sheet; 'a-second electric motor for rotating saidcutter; an electric switch adapted to start the movement of saidcarriage controlled by said traveling sheet; an

support for said cutter; means to move said 1 D.

cutter and support across the line of travel of said sheet and back toits starting point;-

means providing a slot 'alongwhich said cutter travels; means to adjustthe angle said slot makes with the line of travel of said sheet; meansto adjust the plane of said cutter with respect to the axis of saidslot; and means to'cause' a dwell of said 'cutter automatic cut-outswitch adapted. to be oper- I andsupportafter reaching said. startingPQlllli- H 15. In an apparatus for cutting a travel- 1 ing sheet -into apredetermined ength the combination of a cutter; means constituting;

a support for 5 said cutter; pivoted 'means for supporting saidcutter-and first named I means automatic means tomove said cut.-

terfand. support across the line of travel ofsaid'sheet and back to itsstarting point; 7;; means providing a slot along which said cutterz-ftravels; means to adjust theangle said" yslot niakes with the lineof travel of said I sheet; means to adjust the plane of said.cfutter'with respectto the axis of said slot.

;;i-andv automatic means, comprising a circuit j controlling switch tocause 1 a 'dwell of said cutter and supportafterreachmg 831d start---mg. polnt.

,. 1 116, In an apparatus for 'cutting-a travel 'iiig sheet into;aipredetermined length the 20mbinati0n of a rotating cutter;- anelect1-ic motor';for rotating said cutter; means constituting a supportfor said-cutter; means -:compris1ng -asecond. motor and connections j tomove sald' cutteri and support across;the-

line of'travel' of said sheet and back "tofits starting point; meansproviding a slot along" which said cutter travels; means to adjust. theangle said slot makes with the line of travel of said sheet; means toadjust the plane of'said cutter with respect to the axis of said slot;and means comprising a pair of switches controlled by said sheetandfirstnamed means to cause a dwell of said cutter and support afterreaching said sta'rting point. I a

I In testimony whereof L afiiX my signature.

TREADWAY B. MUNROE.

